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25 lines
576 B
C#
25 lines
576 B
C#
using System;
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public static class GoEaseCircular
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{
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public static float EaseIn( float t, float b, float c, float d )
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{
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return -c * ( (float)Math.Sqrt( 1 - ( t /= d ) * t ) - 1 ) + b;
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}
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public static float EaseOut( float t, float b, float c, float d )
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{
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return c * (float)Math.Sqrt( 1 - ( t = t / d - 1 ) * t ) + b;
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}
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public static float EaseInOut( float t, float b, float c, float d )
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{
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if( ( t /= d / 2 ) < 1 )
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{
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return -c / 2 * ( (float)Math.Sqrt( 1 - t * t ) - 1 ) + b;
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}
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return c / 2 * ( (float)Math.Sqrt( 1 - ( t -= 2 ) * t ) + 1 ) + b;
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}
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}
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